In the last few decades, several direct-detection experiments have reported possible hints of dark matter (DM) interactions [1]}, [2]}, [3]}, [4]}.
To this date, the DAMA/LIBRA  collaboration maintains the sole remaining claim [4]}, [6]}, [7]}, [8]}, [9]}, which has been in strong tension with other experiments [10]}, [11]}, [12]}, [13]}, [14]}, [15]}, [16]}, [17]}.
The DAMA/LIBRA  detector is situated in the Laboratori Nazionali del Gran Sasso (LNGS) in Italy at an overburden of 3200 m.w.e [18]}.
The active volume consists of an array of ultra-high purity NaI(Tl) crystals with a total active mass of 250 kg [7]}, [18]}, and passively shielded with high-purity copper, lead, polyethylene, and concrete layers.
The dark matter claim was made based on an event rate modulation observed in the low-energy region of the experiment.
A model-independent analysis of twenty years of DAMA/LIBRA  data reports a modulation of 2–6 keVee event rate over 14 annual cycles with 9.3 sigma detection level [8]}.
Reduction of the energy threshold to 1 keVee in the latest six annual cycles improves the confirmation of the annual modulation at a 12.9 sigma detection level [4]}.
Recently, combined data of DAMA/NaI, DAMA/LIBRA-phase1, and DAMA/LIBRA-phase2 favor the presence of a modulated behavior of 2–6 keVee event rate at a 13.7 sigma confidence level [23]}.
A few other NaI-based experiments have been launched with a goal of performing a model-independent test of the DAMA/LIBRA claim, but none have obtained a background rate as low as that in DAMA/LIBRA  yet [11]}, [12]}, [13]}, [14]}, [15]}, [16]}, [17]}.
As a result, the DAMA/LIBRA  annual modulation had not been definitively confirmed or refuted up to date.
